baber/WOPTO huggingface dataset:
Patent GB-875408-A (GB)
Title: Twistgrip, particularly of the kind used on the handlebars of handlebar-controlled vehicles
IPC: B62M25/00
Filed: 1959-03-06
Abstract: 875,408. Twist grips. MUNZ, E., [trading as MAGENWIRTH KOMM.-GES., GUSTAV.]. March 6, 1959 [March 8, 1958], No. 7800/59. Class 136(1). A clutch lever 19 operating a cable 22 rotates on a mounting 18 carried by a twist grip 22 which operates a gear-change cable 16 and has a plate 24 which, when the lever 19 is in a position of rest, can engage one of a number of peripheral apertures 17 a, b, c, in a locking plate 17 fixed with the twistgrip housing 14 to handlebars 11 so as to safeguard the selected speed of gear-change; a control member 20 on the mounting 18 abuts against the end 24a of the plate 17 to prevent a change to lower than third gear until it is moved away by a thumb piece 20a. The abutting tongue 20b can be raised to ride on the periphery of the plate 17 to allow the slots 17b and 17a (neutral and first gear) to be engaged (Fig. 5, not shown).
Patent GB-167144-A (GB)
Title: Process and device for cooling and liquefying air and other gases
IPC: F25J1/00
Filed: 1921-03-11
Abstract: 167,144. Heylandt Ges. f³r Apparatebau, and Unruh, M. von. July 28, 1920, [Convention date]. Tappet gears.-The inlet valve M of an engine cylinder used in gas liquefaction is opened by the impact of the conical piston end at the end of its stroke. The outlet valve Q is actuated from the shaft of the engine.
Patent GB-874770-A (GB)
Title: Polynuclear quinone derivatives
Filed: 1960-03-04
Abstract: The invention comprises: compounds of the formula <FORM:0874770/IV (b)/1> wherein R1 represents the atoms necessary to complete an alkyl substituted or unsubstituted carbocyclic or heterocyclic ring containing five or six carbon atoms; the preparation thereof by reacting a compound of the formula <FORM:0874770/IV (b)/2> wherein X and Y are chlorine or bromine atoms, with a salt of hydrogen sulphide; and tuberculostatic compositions (see Group VI) containing the products.  The products may be reduced to the corresponding hydroquinones and these, if desired, acetylated, or they may be oxidised to the corresponding sulphoxides and sulphones. 2,3-Disubstituted-1,4-naphthoquinones, 2-3-disubstituted-5,6,7,8-tetrahydro - 1,4 - naphthoquinones and 6,7-disubstituted-5,8-quinolinequinones, having the formula II above, are prepared by condensing the appropriate dihalo-quinones with b -halo-ethylamines.ALSO:Tuberculostatic compositions comprise compounds of the formula <FORM:0874770/VI/1> wherein R1 represents the atoms necessary to complete an alkyl substituted or unsubstituted carbocyclic or heterocyclic ring containing five or six carbon atoms, with a pharmaceutic carrier.
Patent GB-397224-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41B9/02
Filed: 1932-03-16
Abstract: 397,224. Wearing-apparel. ROSE, J. L. and BARNES, C. H., 89, Turnmill Street, London. March 16, 1932, No. 7849. [Class 141.] A nether garment, such as a pair of pyjama trousers, has a hem 11 at the waist in which a length of elastic webbing 12 is permanently secured by stitching at 13, 14. The webbing is shorter than the length of the hem when fully extended. The garment has a " fly '' opening which is closed by buttons and button-holes 17, 18. A plurality of button-holes may provide for adjustment. The " fly " opening comprises overlapping triangular portions 19, 20.
Patent GB-905861-A (GB)
Title: Improvements in and relating to control apparatus for supervising or regulating the level of liquid in tanks
Inventor: MEISEL WOLFGANG
IPC: G05D9/12
Filed: 1959-03-06
Abstract: 905,861. Feedwater regulators for steam boilers. DAMPFERZEUGER VEB. March 6, 1959, No. 7933/59. Class 123 (2). [Also in Groups XVIII and XXXVI] In a liquid level indicating system, electrodes are positioned in a container to correspond to the highest or lowest level and are each connected in a bridge circuit the outputs of which are fed to an electronic valve controlling two relays of different sensitivity depending on the relative positions of the liquid level and the electrodes. The boiler feed water control system shown is started by setting switch 4 to position 2 and closing push-button 35. If the water covers the lower electrode 13, the bridge circuit formed by resistors 14, 15, 16 will be unbalanced so that the output, when rectified by a voltage doubling circuit 51, 52, will cause valve 9 to energize the more sensitive relay 23. This action lights an indicator lamp 31 and energizes a boiler fuel supply relay 22. When the water level is below electrode 12 a bridge circuit formed by the resistors 17, 18, 19 is approximately balanced, so that its small alternating voltage output, after rectification by a voltage doubling circuit comprising rectifiers 47, 48, provides a voltage which is insufficient to allow valve 9 to energize the lesssensitive relay 20. When the water level covers electrode 12, relay 20 is energized, lighting an indicator lamp 33 and stopping the feed water pump or valve 21. In the event of the water level falling below electrode 13, the bridge comprising resistors 14, 15, 16 becomes approximately balanced, reducing the current of valve 9 so that both relays 23, 20 are released, releasing the fuel supply relay 22, energizing visual and audible alarms 36, 37 and providing an indication on a recorder 38. The system cannot be restarted until push-button 35 is again operated. Fig. 1 (not shown) relates to an arrangement in which the bridge circuits are fed with direct voltage and are connected to successive grids of valve 9.
Patent GB-612416-A (GB)
Title: Improvements relating to synthetic resin compositions
IPC: C08L61/06
Filed: 1945-03-29
Abstract: Compositions suitable for impregnating fibrous sheets or fabrics to be laminated together comprise a phenol-aldehyde condensate or its constituents and a mineral oil extract obtained by extracting with polar solvents or mixtures containing same (e.g. a sulphur dioxide-benzene mixture) a mineral oil fraction having an average molecular weight in the range 200-800, a carbon-hydrogen ratio of at least 7.2 : 1, and a boiling range of from 250-800 DEG  C. at 760 mms. pressure.  The quantity of the mixture may be from 15-250 per cent by weight of the phenol content of the resin.  The extracted fraction may, before incorporation with the resin, be further refined by blowing air therethrough as described in Specification 573,878; sulphur treatment as described in Specification 609,307; chlorine treatment as described in Specification 606,416, or by clay, acid, hydrogenation, absorption and desorption, or distillation treatments. The incorporation may be carried out by addition to the phenolformaldehyde during the initial alkali-condensation stage, or after such initial condensation has proceeded to any desired stage. The mineral oil fraction may be recovered from the resin by a suitable solvent, e.g. acetone.  In examples a mineral oil fraction which may be prepared as described in Specification 606,099, and has a boiling range of 435-485 DEG  C. at 760 mm. is submitted to multiple counter current extraction with a mixture of 85 parts sulphur dioxide and 15 parts benzene at an extraction temperature gradient of 140-250 DEG  F.  30 Parts of the extract thus obtained are mixed with 80 parts 40 per cent m-cresol and 60 parts 40 per cent formaldehyde and the mixture reacted in presence of ammonia at 100 DEG  C.  The dehydrated resin dissolved in methylated spirit was used to impregnate paper laminates cured at 140 DEG  C. Specifications 529,237, 571,248 and 571,249 also are referred to.
Patent GB-738326-A (GB)
Title: Support for the rotation of cylinders
IPC: B23K37/053
Filed: 1953-03-23
Abstract: 738,326. Welding by fusion. ARONSON, C. N. March 23, 1953, No. 7983/53. Class 83(4). Apparatus for supporting cylindrical workpieces for welding &c. comprises a pair of aligned horizontally-spaced toothed wheels 13, 14 with an endless chain engaging them and means for adjusting the spacing of the wheels, whereby the upper portion of the chain, in contact with the work, forms an arc of variable radius. A cylinder 10 rests on two supports 11, 12 identical except that only the former has a drive for the toothed wheels. The chains have rubber pads 103 contacting the work. Wheel 14 is carries on a pair of connected beams 21, 22 and a shaft extending from the wheel is connected through a clutch to a worm 50 on a shaft which is connected through a splined connection to a worm in the casing of wheel 13. A motor drives the latter worm and the clutch and gearing for wheel 13 are the same as for wheel 14. A lever 42 actuated by a solenoid 77 acting through a chain 79 operates the clutch. The wheel 14 on the beams 21, 22 is movable along the base of the apparatus by a screw device 91. The motor, a three-phase reversible motor, and the clutch solenoids are controlled by a two position and off switch. In one position the solenoid for one clutch is actuated and the motor rotates in one direction. Thus, e.g. the wheel 13 is driven clockwise as seen in Fig. 1. In the other position the wheel 14 is driven counterclockwise. A further switch is provided so that both solenoids may be operated when the first switch is " off " to obtain a braking action or when the first switch is in either position when both wheels are driven.
Patent GB-550228-A (GB)
Title: Improvements in coin-controlled vending machines
IPC: G07F5/12
Filed: 1941-06-26
Abstract: 550,228. Coin-freed apparatus. HARPER, P. S., and HARPER AUTOMATIC MACHINE MANUFACTURING CO., Ltd. June 26,1941. No. 8029. [Class 27] A coin reception unit for an electrically operated coin freed vending machine takes a stack of coins superimposed edgewise and resting on a platform 3 normally held in coin-supporting position by a light spring but movable therefrom by an electromagnet 4, stops 8, interspaced between the coins in column, and withdrawable by magnets 10, being provided for holding up all the coins above them. Switches 25 complete circuits when a coin pressed in the shoot engages a lever 13 carrying the contact 14 and the circuit is arranged so that on pressing a button 18, Fig. 5, to the amount of a purchase, if the required coins are present a circuit is made through their switches 25, the coin release magnet 4, the excess coin hold up magnet 10 and an appropriate delivery magnet 20 for releasing or ejecting the goods purchased. A holding relay 200 between each magnet 10 and the magnet 4 ensures time for the coins to fall and circuit is broken only by opening of the switch 18 which may have any suitable delay-action device fitted.
Patent GB-126277-A (GB)
Title: Improved Grate-bar or Fire-bar.
IPC: F23H3/02
Filed: 1919-03-31
Abstract: 126,277. Sherry Water Tube Boiler Co., (Assignees of Sherry, J. C.). May 1, 1918, [Convention date]. Fire-bars are provided with longitudinal air passages 3 discharging air through perforations 9 arranged between projections 4 on the sides of the bars. The ends of the projections are inclined to form deflecting surfaces for the air discharged through the perforations. The bars are mounted in bearings, and adapted to be rocked by a lever 15 and a bar 8 engaging with lugs 7 on the bars.
Patent GB-243958-A (GB)
Title: Improvements in or relating to electric jet-wave commutators and interruptors
IPC: H02M1/30
Filed: 1925-03-25
Abstract: 243,958. Hartmann, J. F. G. P. March 25, 1925. Mercury interrupters.-In a jet-wave commutator or interrupter which may be used for rectifying alternating current as described in Specification 102,977, the current is led into or out of the jet-wave by one or more auxiliary electrodes each consisting of a conducting wall arranged substantially in the direction of movement of the liquid particles for a distance of at least half a wave-length and arranged perpendicular to the plane of the wave. Fig. 2 show& one such auxiliary electrode E<1> the top edge of which cuts the jet-wave. In the position shown in full lines, current can pass from the electrode E<1> to the main electrode E1 through the portion a, b of the jet. wave. In the dotted-line position, auxiliaty and main electrodes E<1>, E2 are connected by the portion c, d of the wave. According to a modification the electrode E<1> may be wedge-shaped and Fig. 5 shows two such wedgeelectrodes E<1>1 and E<1>2 co-operating with divided electrodes E1, e1 and E2, e2.
Patent GB-1361347-A (GB)
Title: Azobenzenes processes for their preparation and compounds prepared  therefrom
IPC: A61K31/165
Filed: 1972-02-22
Abstract: 1361347 2,2<SP>1 </SP>- Dihalo - 4,4<SP>1</SP> - dialkylaminoalkylcarbamoyl - 5,5<SP>1</SP> - dialkoxy - azobenzenes MEIJI SEIKA KAISHA Ltd 22 Feb 1972 [22 Feb 1971 14 July 1971] 8084/72 Heading C2C Novel 2,2<SP>1</SP> - dihalo - 4,4<SP>1 </SP>- dialkylaminoalkylcarbamoyl - 5,5<SP>1</SP> - dialkoxy - azobenzenes of the general formula wherein X is a halogen atom, each of R<SP>1</SP>, R<SP>3</SP> and R<SP>4</SP> is an alkyl group and Z is an alkylene group, are, prepared by reaction of a dialkylaminoalkylamine of the general formula with a 2,2<SP>1</SP>- dihalo - 4,4<SP>1</SP> - dialkoxycarbonyl- 5,5<SP>1</SP> - dialkoxy - azobenzene of the general formula wherein R<SP>2</SP> is an alkyl group, which is prepared by halogenation of the corresponding 4,4<SP>1</SP>- dialkoxycarbonyl-3,3<SP>1</SP>-dialkoxy-azobenzene of the second general formula above wherein X is a hydrogen atom or of the corresponding 4, 4<SP>1</SP>- dialkoxycarbonyl-3, 3<SP>1</SP>-dialkoxy hydrazobenzene of the general formula (prepared by reduction of the corresponding 4,4<SP>1 </SP>- dialkoxycarbonyl - 3,31 - dialkoxy - azoxybenzene of the general formula The novel compounds may be reduced to give 2 - alkoxy - 4 - amino - 5 -halo - N- dialkylaminoalkylbenzamides of the general formula which may be used to suppress nausea and vomiting.
Patent GB-435700-A (GB)
Title: Improvements in and relating to the jointing of tubular members and the like
IPC: F16L13/00
Filed: 1934-03-15
Abstract: 435,700. Pipe joints. BRITISH MANNESMANN TUBE CO., Ltd., Corporation Road, Newport, Monmouthshire, and ALBERT, W., 7, Richmond Villas, Swansea,. March 15, 1934, No. 8182. Drawings to Specification. [Class 99 (i)] [See also Group XXII] In overlap joints for tubular members the members are of such relative size that when forced together without heating one or both of the members is or are stressed beyond the elastic limit. The ends of the members may be chamfered and the joint may be subjected to heat treatment after assembly.
Patent GB-861974-A (GB)
Title: Improvements in or relating to voltage stabilised electric power supplies
Inventor: WEBB HERBERT HENRY
IPC: G05F1/52
Filed: 1958-03-14
Abstract: 861,974. Automatic voltage control systems with excessive current protection. RACAL ENGINEERING Ltd. Feb. 27, 1959 [March 14, 1958], No. 8189/58. Class 38 (4). In a series valve voltage stabilizing system a resistor R8 is connected between the cathode of a regulating triode valve V1 and an output terminal 12, and a diode valve D1 is connected between the control grid of the triode and the output terminal. At a predetermined current through the triode the voltage across the resistor causes the diode to conduct and maintain the control grid potential of the triode near that of the cathode. The impedance in series with the supply is then equal to the anode impedance of the triode. The diode valve D1 may be replaced by a silicon or germanium diode.
Patent GB-497728-A (GB)
Title: Improvements in or relating to voltage and/or current increasing devices
IPC: G01R13/00
Filed: 1937-03-19
Abstract: 497,728. Current and pressure meters; potentiometers. SIEMENS & HALSKE AKT.-GES. March 19, 1937, No. 8211. Void. Convention date, March 19, 1936. [Class 37] For indicating or recording minute currents or pressures or other electrical values which may be represented by a current, the e.m.f. to be measured or one proportional to the value to be measured is balanced against an e.m.f. produced by a self-compensating thermionic amplifier, the compensating effect in the amplifier being regulated by an electrostatic voltmeter. If the potential ex to be measured is applied to the terminals 9, 10, Fig. 1, and rises, for example, the moving element 5 of the electrostatic meter 5, 6, 7, is deflected and moves a screen 4 to reduce the light impinging upon a photoelectric cell 3 from a lamp 2. The grid potential of a thermionic valve 8 is thereby reduced, and the anode current increases until the potential drop across the resistance RN in the anode circuit balances the potential ex. The anode current thus varies according to the potential ex and is recorded by a recorder 20. For current measurements the electrostatic meter 5, 6, 7, Fig. 2, is connected directly to terminals 9, 10 through which the current ix to be measured flows, the meter automatically controlling the anode current as before, the condition of balance occurring when the potential drop across resistance RV due to current ix is equal to the potential drop across a relatively small resistance RN due to the difference between the anode current and ix. The anode current is again proportional to the current to be measured ix and is recorded at 20. The invention is also applicable to measuring any other electrical value which may be represented by a current effective in a load instrument, e.g. a relay or electric motor.
Patent GB-142909-A (GB)
Title: Improvements relating to lifting apparatus
IPC: B66C23/26
Filed: 1919-02-10
Abstract: 142,909. Quet, F. Feb. 10, 1919. Addition to 122,851. Jib cranes; overhead supports.-The top section j, instead of being bolted to the next lower section, as described in the parent Specification, is pivoted to it at its lower end, so that it can act as a jib, a luffing-rope 13 being connected to the top 13<1> of the lower section and passing over a pulley 19 on the top section to the winch drum 17. A second winch drum 16 operates the lifting-rope 10, and a worm 23, also operated by the winch, engages a worm-wheel 22 fixed on the truck pivot and enables the platform 1 to be slued on a circular track 20 on the truck.
Patent GB-976954-A (GB)
Title: Improvements in manufacturing manganeze zinc ferrite bodies
IPC: C04B35/26
Filed: 1963-03-01
Abstract: 976,954. Magnetic compositions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 1, 1963 [March 5, 1962], No. 8293/63. Heading H1H. A method of manufacturing a soft magnetic manganese-zinc ferrite sintered body having a high initial permeability and low high-frequency losses comprises prefiring for several hours at a temperature between 900‹ C. and 1100‹ C. a mixture of iron manganese and zinc oxides or oxide-yielding compounds which mixture contains chemically-bound calcium, cooling and pulverizing the reaction product, mixing the mixture with oxalic acid and/or ammonium oxalate, adding ammonium alginate as a binder and granulating the product, compressing the product into shape, sintering for half an hour at 1225‹ C.-1275‹ C. in N 2  containing 2-10% O 2  and cooling to room temperature over 3-4 hours, the cooling from 1000‹ C. taking place in N 2 .The inclusion of the oxalic acid or oxalate is in an amount chemically equivalent to the bound calcium, and results in fewer rejected sintered bodies. Specified materials are 52- 58 mol. per cent Fe 2 O 3 ,14-16 mol. per cent ZnO and 28-32 mol. per cent MnO.
Patent GB-199465-A (GB)
Title: Improvements in locking devices for lift doors and cages
IPC: E05B65/00
Filed: 1922-03-22
Abstract: 199,465. Karasek, W. C. March 22, 1922. Lift cages and doors, locking and unlocking and operating.-In locks fot well doors a fixed beak G on the door is engaged by a catch D releasable by a solenoid B. The circuit containing the solenoid is completed (1) by moving the lift controller to stop the lift thus de-energizing the coil N and allowing the contact plate fixed to its core to fall to the position shown, (2) by a cam switch in the motor room driven by the winding drum, there being a switch for each floor and (3) by turning the handle I to raise the movable beak F until it has brought an insulated contact plate T on a pivoted arm H into contact with the terminals K, J If the cam switches are dispensed with, the locking device may be fitted to the cage door which can then be opened whenever the lift is stationary.
Patent GB-255377-A (GB)
Title: Improvements in superheater arrangements for vertical boilers
IPC: F22G7/10
Filed: 1926-03-27
Abstract: 255,377. Sugden, T. March 27, 1926. Dampers for controlling superheaters.-A damper plate W provided with apertures W<1> and slidable in guides mounted on the combustion chamber wall of a vertical boiler, is adapted to close wholly or partially corresponding apertures V in a bar-like rafractory screen extending between a wall L' and a dependent screen N' which partially screen superheating tubes J arranged tangentially to the boiler shell from the combustion chamber. The damper is actuated by means of a threaded suspension rod 2 engaging a nut 4 which may be turned by a hand wheel' or a lever carrying a reversible double pawl engaging ratchet teeth on the nut.
Patent GB-678678-A (GB)
Title: Improvements relating to the testing of sealed envelopes using high frequency high voltage
IPC: F21K5/08
Filed: 1951-04-11
Abstract: 678,678. Testing vacuums. BRITISH THOMSON-HOUSTON CO., Ltd. April 11, 1951 [April 29, 1950], No. 8404/51. Class 37. [Also in Group XL (c)] High-frequency test apparatus for glow testing photoflash lamps comprises a portable high frequency generator, a high alternating potential electrode 7 projecting from the generator casing, and a parallel pair of grounded elongated shoe electrodes 17 located slightly beyond and extending transversely to the direction of the electrode 7. The electrodes 17 resiliently straddle the sides of a lamp when the electrode 7 is pressed down on top of the lamp, the colour of the glow discharge within the upper part of the lamp indicating its condition without fulminating its ignitable material 28. The electrode 7 may be of water saturated sponge material mounted through the bore of a rubber bushing 12 in contact with the high frequency coil. The casing is of insulating material with a metal band 21, mounting the electrodes 17, connected by a lead 23 to earth. Specifications 558,205 and 560,737, [Group XXI], are referred to.
Patent GB-254372-A (GB)
Title: Improvements in and relating to joints for collapsible furniture and other articles
IPC: A47B3/12
Filed: 1925-03-30
Abstract: 254,372. Hampson, J. March 30, 1925. Stand heads.-A pivoted head for a tripod stand comprises a screwed stem 14, carrying a plate 19 on which a camera may be secured, pivotally mounted by a. pivot 11 to a bracket 7. A nut 18 on the stem is movable into engagement with flat surfaces 21 or a curved surface of the bracket 7.
Patent GB-526455-A (GB)
Title: Combination tool
IPC: B43L7/00
Filed: 1939-03-16
Abstract: 526,455. Protractors &c. FAIRBROTHER, H. March 16, 1939, No. 8466. [Class 97 (iii)] A combination set square, mitre and scale comprises a flat sheet of metal, synthetic resin &c. a with one edge formed with a stop flange c and another edge e provided with a scale, mitre or other angle slots f being provided from the stop flange edge. A rectangular or other opening h with its sides dimensioned and a series of holes g at marked distances from a centre point for drawing circles are provided. The edges of the sheet may be stiffened by beading b, and the sheet may have pressed ribs to stiffen it.